<template>
  <h2>姓名:{{name}}</h2>
  <h2>年龄:{{age}}</h2>
  <h2>薪资:{{job.j1.salary}}k</h2>
  <button @click="name+='~'">修改姓名</button>
  <button @click="age++">增长年龄</button>
   <button @click="job.j1.salary++">增长薪资</button>
</template>

<script>
import { reactive,toRef,toRefs } from "vue";
export default {
  name: 'Demo',
  setup() {
    //数据
    let person = reactive({
      name:'张三',
      age:18,
      job:{
        j1:{
          salary:20
          }
      }
    })

    //返回一个对象（常用）
    return {
      /* name:toRef(person,'name'),
      age:toRef(person,'age'),
      salary:toRef(person.job.j1,'salary') */
      ...toRefs(person)
    };
  },
};
</script>